50 Plug Door Track Cleaning Box Car - UNION PACIFIC - N Scale. Bachmanns track cleaning car provides an efficient and economical way to clean your track. This cars exclusive dry cleaning system features a reusable track cleaning pad. (Track Cleaning Replacement Pads, Item 16999, also available). With a variety of colors and road names to choose from, Track Cleaning Cars are sure to keep your trains running smoothly. Our Premium Silver Series Rolling Stock is Fully Assembled and Features; Highly Detailed Painted Body with Precision Graphics (where applicable), Blackened Machined Metal Wheels with RP 25 Contours, Non-magnetic Blackened Brass Axles with Needle-point Bearings, Magnetically Operated Body Mounted E-Z Mate Couplers, Celcon Trucks, and Added Weight for Optimum Tracking. N Scale 1:160.